Staple forming mechanism



4 March 12, 1935. A. L. ROSENMUND ET AL STAPLE FORMING MECHANISM FiledSept. 16, 1932 7 Sheets-Sheet l IN V EN TORS fllfv-ed L-RO-SenmunalBygeorge FIE-I ZI le/zeari; ,fi ur ATTOR EYS.

March 12, 1935.

- A. L. ROSENMUND ET AL 1,994,255

STAPLE FORMING MECHANISM Filed Sept. 16, 1952 7 Sheets-Sheet 2 INVENTORSk Alfred L Rosenmund Bygeoye flagglefieai i r ATTORN YS.

Mai'ch 12, 1935.

A. L. ROSENMUND ET AL STAPLE FORMING MECHANISM Filed Sept. 16, 1932 7Sheets-Sheet 3 IN V EN TORS .Zll/freol flosen mwnd BY jeoz 'e l.{yZi/zea-r i A TTORNEYS.

March 12, 1935. A, ROSENMUND r AL 1,994,255

STAPLE FORMING MECHANI SM Filed Sept. 16, 1932 7 Sheets-Sheet 4 BIZeheari ali ATTORNEYS.

I INVENTORS flZFz-ed L .liosenmwwi March 12, 1935. A. L. ROSENMUND ET ALI 1 STAPLE FORMING MECHANISM Filed Sept. 16, 1932 7 Sheets-Sheet 5 I N VEN TORS liosenmurwi March 1 1935- A. L. ROSENMUND El AL 1,994,255

STAPLE FORMING MECHANI SM Filed Sept. 16, 1932 7 Sheets-Sheet 6 V IN VEN TORS fllf'recz l ,Rosenmancl BY 9601:9631? {ylflfiear ATTORNEYS.

A.-.L. ROSENMUND Er AL STAPLE FORMING MECHANI SM March 12, 193B.

7 SheetsSheet 7 Filed Sept. 16, 1932 J5 B 5d n Nm a, M5 8 wmflwm mm M. 1w e A UNITED STATES PATENT OFFICE STAPLE FORMING MECHANISM Alfred L.Rosenmund, Rockaway,- and George-P. Igleheart, Boonton, N. J., assignorsto stapling Machines 00., a corporation of Delaware I ApplicationSeptember 16, 1932, Serial No. 633,392

27 Claims.

This invention relates to staple forming and driving mechanism andparticularly to that type of staple forming-and driving "mechanism whichforms staples from staplestock wire fed thereto and drives the formedstaples into work positioned beneath the driver.

It is an object of the invention to provide an efiicient, economical anddurable staple forming and driving mechanism.

It is a further object of the invention to provide a high speed stapleforming and driving mechanism.

It is a further object of the invention to provide a staple formingmechanism adapted to produce a succession of staples having; legs ofuniform length.

One illustrative embodiment of the invention accompanying drawings, in

is shown in the which:

Figure 1 is a side elevation of a machine embodying the staple formingand driving mechanism of the invention and showing generally theoperating connections for operating the several mechanisms from a mainshaft.

Fig. 2 is an enlarged side elevation of a staple forming and drivingunit.

Fig. 3 is an enlarged vertical section of the staple. forming anddriving unit.

Fig. 4 is an enlarged side elevation of the staple forming and drivingunit with ,the front cover plate removed for clearness of illustration.In this view the staple former is at the top of its stroke and is aboutto descend to sever a portion ofthe staple stock wire and form it into astaple.

the loop bar.

a Fig. 6 is a similar view showing the position of the former after thestaple stock wire has been severed and while the severed portion isbeing bent over the loop bar.

Fig. 7 is a similar view showing the completed staple being driven outof the former.

Fig. 8 is an enlarged horizontal sectional plan taken on the line 8-8 ofFig. 2' and Fig. 4.

Fig. 9 is a horizontal sectional plan taken on the line 99 of Fig. 5.

Fig. 10 is a horizontal sectional plan taken on the line 1010 of Fig. 6.

Fig. 11 .is a horizontal sectionalplan talren on the line 11--1'1 ofFig. '7.

Fig. 12 is an inside view of the front cover plate viewed from the line12-12 of Fig. 11.

Fig. 13 is an inside cross-sectional view of the front cover plate takenon the line 1313 of Fig. 12.

As conducive to a better understanding of the invention it may be notedat this point that in the manufacture of various types of boxes, crates,baskets and other shipping containers, the parts forming such containersare stapled together by a staple forming and driving mechanism whichforms staples from staple stock wire automatical- 1y fed thereto anddrives the formed staples'into the work which is progressively subjectedto the action of the staple forming and driving mechanism, the workbeing 7 advanced beneath said mechanism between staple drivingoperations thereof. Such staple forming and driving mechanisms are alsoused in the manufacture of wire bound boxes as shown in U. S. LettersPatent to Thompson No. 1,669,383 of May 8, 1928-. In the machine of saidThompson patent the staple forming and driving mechanism is arranged todrive the formed staples over binding wires and into the wooden boxelements to secure the binding wires thereto and to secure said elementstogether. Heretofore, as in the machine of said Thompson patent, thestaple stock wire from which the the staple forming mechanism by feedwheels which are rotated intermittently to cause such intermittent feedof. the staple stock wire Such an intermittent feed of the staple stockwire not only limits the speed of operation of the machine, but also hasa tendency (due to the sudden starting and stopping of the rotation ofthe feed wheels) to vary the length of the staple legs in successivestaples.

While the objectionable features of the intermittent staple stock feedhave been recognized,

sary in the production of staples from 'staple stock wire fed to thestaple forming mechanism, it being thought necessary to interrupt thefeed of the staple stock wire during the cutting, forming and driving ofa staple. Hence in all staple forming and driving mechanisms heretoforeused, a length of staple stock wire sufficient for the formation of astaple has been fed beneath the staple former and then the feed of thewire was stopped while the staple former and driver descended to cut thewire, bend it into the form of a staple, and drive the completed stapleinto the work. The feed-of the staple stock wire was not resumed untilthe former and driver were again raised to permit another length of wirefor the next staple to be fed beneath the former. Applicants propose tosuch a feed has heretofore been considered necesstaples are formed hasbeen fed intermittently to stroke of the staple former.

feed the staple stock wire continuously to the staple forming anddriving mechanism, whereby while one staple is being formed and driven,wire for the next staple is being fed into the stapling unit to besevered and formed upon the next down Such a continuous feed of thestaple stock wire permits a reduction in the stroke of the stapleformer, increases the speed of operation of the machine and producesstaples having legs of uniform length.

In Fig. 1 is shown a machine embodying the staple forming and drivingmechanism of this invention. As there shown, the staple forming anddriving units and the operating parts therefor are supported by sideframes 1 connected and supported; by suitable cross bars. The staplestock wire designated 2 which is to be fed to the staple forming anddriving units is carried by a reel 3 rotatably mounted in brackets 4hung from a rod 5 extending across the machine and supported at eitherend by an upright 6 and braced by a rod '7 secured to side frames 1.Suitably supported by cross bars of the machine is'a work support 8 forthe work to be operated upon. Such support may be stationary as shown,or it may consist of a movable support in the form of endless conveyorchains or'the like upon which the work may be fed beneath the stapleforming and driving mechanism. The machine may carry a plurality ofstaple forming and driving units to drive a plurality of rows of staplesinto the work, a reel 3 for staple stock wire being provided for eachstaple forming and driving unit.

The staple forming and driving units are carried by a stationary crossbar 9 supported by side frames 1 and a crossbar 10 adapted toreciprocate vertically in guide ways 11 formed in side frames 1. Crossbar 10 is reciprocated vertically through link 12 by an eccentric 13 ona main shaft 14 rotated from any suitable source of power.

Referring to Fig. 2, each staple forming and driving unit compriseslower and upper castings 15 and 16 detachably and adjustably mounted oncross bars 9 and 10, lower casting 15 being clamped to stationary crossbar 9 by a clamp plate 17, and upper casting 16 being clamped tovertically reciprocating cross bar 10 by a clamp plate 18.

The staple stock wire 2 is fed to the lower casting 15 through feedrolls 19 and 20, roll 19 being splined to a shaft 21 journaled in sideframes 1, which shaft is rotated continuously as hereinafter described,and roll 20 is loosely mounted on an eccentric shaft 22 journaled in anarm 23 extending from the lower casting 15, said shaft 22 being pressedtoward shaft 21 by a suitable spring. To

impart a positive rotation to feed roll's 19 and 20, said rolls areprovided with intermeshing gears 24 and 25.

As shown in Fig. 1, shaft 21 is rotated continuously by a gear 26splined to said shaft through a chain 27 and a pinion 28 on main shaft14.

Referring to Fig. 4, the staple stock wire 2 is fed by the feed rolls 19and 20 through a guide tube 29 carried by a support block 30 bolted tolower casting 15. From guide tube 29 staple stock wire 2 is fed througha flexible and resilient guide tube 31 which is secured to support block30 by a set screw 32, Guide tube 31 extends from block 30 into a recessformed in lower casting 15, and when in normal non-flexed positionguides the wire over a stationary cutter 33 and a loop bar 35. Cutter 33is provided with a chamfer cutting edge 34 at a suitable angle to formthe staple joints, and is secured in the recess in casting 15 by boltsor screws. The flexible and resilient guide tube 31 functions in themanner hereinafter explained to permit flexing of the wire out of itsnormal path of travel and to return it to position to be severed andbent into staple form over the loop bar 35.

v To form a staple from the staple stock wire which projects beyond the.end of flexible guide tube 31 and extends over loop bar 35, there isprovided a staple former 36 having a cutting edge 37 chamfered tocorrespond to the chamfer of the cutting edge 34 of the stationarycutter '33 for shearing off the stock wire between said cutting edgesupon descent of the staple former 36. To receive the severed wire stock,the lower end of the former is usually provided with a horizontal groove38 of a depth corresponding to the diameter of the stock wire so thatwhen the staple former is brought down beyond the loop bar, as morefully hereinafter described, the severed stock wire will be temporarilyheld in said grooves by said loop bar.

To bend the severed stock wire around the loop bar, the staple former isprovided with an elongated lateral recess 39 having therein opposedlongitudinal grooves 40, each of a depth corre sponding to the diameterof the staple stock wire and connecting with the horizontal groove 38 atthe lower end of the staple former. As a result, on the downwardmovement of the staple former, the stock wire in the horizontal groove38 is bent over the loop bar and into the longitudinal grooves 40 of thestaple former, thereby completing the staple.

Referring now to Fig. 3, to positively force the former 36 downward tobend the staple wire over the loop bar 35 as described, there isprovided a spring pressed dog 41 having its upper end pivoted I to ablock 42 bolted to an ear 43 projecting from the upper casting 16. Thelower end of said dog is directly above an upwardly projecting end ofthe former 36. As a result, when the upper casting 16 is moveddownwardly, the former 36 will also be moved downward and will bend thestaple stock wire over the loop bar 35 to form a staple as described.

The former 36 is not moved positively and entirely to the face of thework, but after the staple has been formed the feed dog 41 is moved outof engagement with the upper end of former 36 by a pin 44 projectingthrough said dog and adapted to engage beveled or cam ends 45 of ribs 46on the front cover plate of lower casting 15. To move the staple formeryieldingly on down to the work and present the staple thereto, theformer 36 is connected to an L-shaped rod 4'7, the upper end of whichprojects through an aperture in the upper casting ear 43. A coiledspring 48 is interposed between the lower face of said ear and a collar49 fast on said rod 47.

Loop bar 35 about which the staple is formed is carried by a loop barholder 50 which is pivotally mounted within a recess 51 on a pin 52. Torock the loop bar 35 out from under the formed staple there is provideda trip slide 53 secured to a back bar 54 connected to the block 42, saidslide be- The staple being thus positioned on the work,

is then in readiness to be driven. To this end there is provided adriver 56 projecting into the lateral recess 39 of the former 36, saiddriver being secured to the back bar 54.

On downward movement of the bar 10 and upper casting 16, the stapleformer 36 will move down and bend the staple stock wire over the loopbar 35. Then the latter will be rocked out from beneath theformed-staple and the dog pin 44 will engage the incline 45 of the rib46 and rock the dog out of engagement with the former 36. Furtherdownward movement of the bar 10 will presentthe former 36 and the stapletherein to the work into which the staple is to be driven. Continueddownward movement of the bar 10 will cause the driver 56 to engage anddrive the staple out of the former 36 into or through the materialbeneath, the points of the staple which may pass through the materialbeing bent over or clinched by engagement with a suitable anvil locatedbeneath the material in vertical alignment with the staple driver.

When bar 10 and upper casting 16 are in their lowermost position, dogpin 44 on dog 41 has passed below beveled or cam end 45 of rib 46, and aprojection 5'7, on the lower end of dog 41 has snapped in beneath anotch 58 in the former 36 in position to engage said notch and raise theformer 36 immediately upon upward movement of the upper casting 16. Thuswhen upper casting 16 starts its upward movement, projection 57engagesnotch 58 and raises the staple former until pin 44 on dog 41 engages acam surface 59 on rib 46, which engagement releases projection 5''! fromits engagement with notch 58. Dog 41 continues to rise with uppercasting 16 until it passes cam surface 45 and snaps in above the upperend of former 36 in position to force the former down dog 41 is beingraised, driver 56 also moves upward in recess 39 of the former 36 andwhen projection 57 of the dog 41 is disengaged from notch 58, the upperend of driver 56 engages the top of the recess 39 of the former 36 andraises it up above the loop bar 35, whereupon slide 53 engages loop barholder and moves the loop bar beneath the former 36 in readiness to formanother staple.

As heretofore stated, the feed rolls 19 and 20 feed the staple stock.wire 2 continuously and at substantially a uniform speed. The speed ofrotation of the rolls 19 and 20 may be regulated to feed the desiredlength of wire for one staple at each revolution of main shaft 14,during which time the staple forming and driving mechanism completes onecycle of operation. The speed of rotation of the rolls 19 and 20 may beregulated by changing the size of pinion 28 on main shaft 14 or bychanging the size of gear 26 on shaft 21, or by changing the size of thefeed rolls 19 and 20.

As shown in Figs. 4 to 11, means are provided to permit the staple stockwire to be fed continuously and without interrupting the feed thereofduring the formation" and driving of a staple. In Figs. 4 and 8, thestaple stock wire 2 is being fed over the stationary knife 33 and theloop bar 35 and beneath the former 36, which is then in raised positionand about to descend. As the former 36 descends from the position shownin Fig. 4 to the position shown in Fig. 5, the wire 2 continues to feedin across the loop bar 35- When the cutting edge 3'1of the former 36reaches the cutting edge 34 of the stationary knife 33 (as shown inFigs. 5 and 9) the correct amount of wire for one staple lies over theloop bar 35 and the wire is severed between cutting edges 34 and 3'7.The former 36 continues to descend,'bending the severed portion of thewire over the loop bar 35, as shown in Figs. 6 and 7. During the descentof the former 36 and during its subsequent ascent to the position shownin Fig. 4, the wire 2 continues to feed in the manner shown in Fig. 11.As there shown, the side face of the former 36 is provided with abeveled surface 60, upon which the end of the staple stock wire isguided toward the front face of the former 36 across which the wire isfed, as shown in Fig. 11. This deflection of the wire by the beveledsurface 60 of the former 36 is permitted by the flexibility of the guidetube 31 which accompanies the flexing movement of the wire- 2 whileresisting undue flexing thereof. The wire 2 continues to feed past thefront face of the former 36, asshown in dotted lines in Fig. 11 untilthe former 36 is raised above the wire 2, whereupon the resiliency ofthe guide tube 31 causes it to swing from, the position shown in Fig. 11to its former position, as shown in Fig. 9. This movement carries thewire 2 beneath the former 36 and over the loop bar 35 in position to besevered and bent upon the next down stroke of the former 36.

.To assist in guiding the wire 2 beneath the former 36 and over the loopbar 35 the inner side of the front cover plate 61 may be formed as shownin Figs. 11 to 13 to provide a guiding channel 62 having a curved end 63to swing the end of the wire toward the former 36 and loop bar 35, asshown in dotted lines in Fig. 11.

As shown in Fig. 7, a plate 64 may be secured to casting 15 directlyover'the path of travel of the wire 2 as it leaves the guide tube 31, toprevent the wire from rising with the former 36 due to thefrictionalengagement of the wire with the outer face of the former 36.upon the next descent of upper casting 16. While Because the wire is fedcontinuously to the stapling unit during the formation and drivng of astaple, wire for the next staple is available immediately uponcompletion of the formation and driving of the first staple. Thispermits a substantial reduction in the stroke of the staple former whichneed only be raised a sufficient distance to clear the staple stock wirebefore 1 starting its down stroke.

It should also be noted that the resilient guide tube 31 functions tofeed the staple stock wire laterally beneath the staple former withoutinterrupting the longitudinal feed of the staple stock wire.

The operation of the machine will be readily apparent from the foregoingdescription. Upon each complete cycle of main shaft 14 a staple isformed and driven, the staple stock wire 2 being fed continuously intoeach stapling unit during the operation of the machine. During theformation and driving of one staple, the staple stock wire for anotherstaple is deflected from its normal line of travel by the beveledsurface 60 of the former 36 and feeds across the front face of theformer 36. This deflection is permitted by the flexible guide tube 31.When the former 36 is raised above the staple stock wire 2, theresilient tube 31 swings back to normal position carrying the wire 2beneath the former 36 in position to be severed and bent on the nextdownward movement of the former 36.

into a suitable receptures of the invention need not be used conjointlyas such features may be used to advantage in various combinations andsub-combinations as defined in the following claims.

We claim: 1. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of reciprocating stapleforming and driving elements, means to feed staple stock wirecontinuously toward the path of reciprocation of said elements, means todeflect the direction of feed of the staple stock wire to feed a portionthereof to one side of the path of reciprocation of said elements, andmeans to move said portion into the path of reciprocation of saidelements to be operated on thereby; said latter means including aresilient guide tube for the wire. 2: In a machine for forming staplesfrom staple stock wire automatically fed thereto, the combination of areciprocating staple forming element, means to feed staple stock wirecontinuously toward the path of reciprocation of said element, means todeflect the direction of feed of the staplestock wire to feed a portionthereof to one side of the path of reciprocation of said element, andmeans to move said portion into the path of reciprocation of saidelement to be operated on thereby. 3. In a machine for forming staplesfrom staple stock wire automatically fed thereto, the combination ofstaple forming elements including a reciprocating staple former, meansto feed the wire longitudinally of its axis to one side of the path ofreciprocation of the staple former, and means to move the wire laterallyof its axis into the path of reciprocation of the staple former, whilemaintaining the longitudinal feed of the wire.

4. In a machine for forming staples from staplestock wire automaticallyfed thereto, the combination of staple forming elements including areciprocating staple former, means to feed the wire longitudinally ofits axis to one side of the path of reciprocation of the staple former,and a resilient guide tube to move the wire laterally of its axis intothe path of reciprocation of the staple former.

5. In a machine for forming and driving staples, the combination ofstaple forming and driving elements including a cutter to sever staplestock wire fed thereto, means to feed staple stock wire continuously tosaid elements, and a flexible and resilient guiding means interposedbetween said elements permit deflection of the moving staple stock wirefrom its normal course of travel and to return it toward its normalcourse of travel.

6. In a machine for forming staples, the combination of staple formingelements, means to feed staple stock wire to said elements, and aflexible and resilient guide tube interposed between said elements andthe feeding means to permit deflection of the staple stock wire from itsnormal course of travel and to return it toward its normal course oftravel.

'7. In a machine for forming staples from staple stock wire fed thereto,the combination of staple forming elements including a reciprocatingstaple and the feeding means to former, means to feed staple stock wirecontinu. ously toward the path of reciprocation of the staple former,means to deflect the course of travel .of said wire when the stapleformer is in the path of travel of the wire and means to return the wireto its normal path of travel when the staple former moves out of saidpath.

8. In a machine for forming staples from staple stock wire fed thereto,the combination of staple forming elements including a reciprocatingstaple former, means to feed staple stock wire longitudinally of itsaxis continuously toward the path of reciprocation of the staple former,means to deflect the course of travel of said wire when the stapleformer is inthe path of travel of the wire, and means to move the wirelaterally of its axis to return it to its normal path of travel when thestaple former moves out of said path.

9. In a machine for forming staples from staple I stock wire fedthereto, the combination of staple forming elements including areciprocating staple former, means to feed staple stock wirecontinuously toward the path of-reciprocation of the staple former,means to deflect the continuously moving wire around the path ofreciprocation of the staple former, and means to move the wireintermittently into the path of reciprocation of the staple former.

10. In a machine for forming staples from staple stock wire fed thereto,the combination of staple forming elements including a reciprocatingstaple former, means to feed staple stock wire longitudinally of itsaxis toward the path of reciprocation of the staple former, means todeflect the longitudinal movement of the wire around the path ofreciprocation of the staple former, and a resilient guide tube to movethe wire laterally into the path of reciprocation of the staple former.

11. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsincluding a reciprocating staple former, means to feed staple stock wirethereto continuously in the direction of the axis of the wire, and meansto reciprocate the moving wire laterally of its axis into and out of thepath of travel of said staple former, said latter means including aresilient guide tube for the wire.

12. In a machine for forming staples from,

staple stock wire automatically fed thereto, the combination of stapleforming elements including a reciprocating staple former, means to feedstaple stock wire thereto continuously in the direction of the axis ofthe wire and means to reciprocate the moving wire laterally of its axisinto ing a reciprocating staple former, and a resilient" guide tube. tofeed staple stock wire into the path of reciprocation of said former ina direction laterally of the axis of the'wire.

15. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsand means to feed staple stock wire thereto continuously in thedirection of the axis of the wire and intermittently in a directionlaterally of the axis of the wire. 7

16. In a machine .for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsand means to feed staple stock wire thereto in a direc-. tion laterallyand longitudinally of the axis of the wire; said means including aresilient guide tube for the wire.

1'7. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsand means to feed staple stock wire thereto in a direetion laterally ofthe longitudinal axis of the wire; said means including a resilientguide tube for the wire.

18. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsand means to feed staple stock wire continuously thereto, said feedingmeans including a resilient guide tube for the wire constructed andarranged to move the continuously moving wire laterally of its axis topresent the wire to the operation of said elements. I

19. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of staple forming elementsincluding a reciprocating cutter and former, means to feed staple stockwire continuously thereto, and

means to subject the moving wire intermittently to the operation of saidelements.

20. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of means to feed staplestock'wire continuously, and staple forming elements including areciprocating cutter and former constructed and arranged to sever apiece of the moving wire and'form it into a staple without in-.terrupting the continuous feeding movement of the body of the wire.

21. In a machine for forming staples from staple stock wireautomatically fed thereto, the combination of a loop bar over which thestaple is formed, a reciprocating staple former to form the staple overthe loop bar, means to feed staple stock wire between the loop bar andthe former,

and means to sever the wire; said wire feeding means including aresilient guide tube for the wire adapted to feed it laterally of itsaxis between the loop bar and the staple former.

22. In a machine of the character described,

the combination of means to feed staple stock wire, means to deflect thenormal course of travel of the wire, and a flexible and resilient guidetube for the wire having one end fixed against movement and the otherend free to flex with the wire, whereby the flexibility of the tube willpermit the wire to be deflected from its normal course of travel, andthe resiliency of the tube will return the wire to its normal course oftravel when the deflecting influence-is released.

23. In a machine of the character described, the combination of means tofeed staple stock wire continuously, and a reciprocating staple formeradapted to sever a piece of the moving wire and form it into a staple.

24. In a machine of the character described, the combination of means tofeed staple stock wire continuously, a reciprocating staple formeradapted to sever a piece of the moving wire and form it into a staple,and a staple driver.

25. In a machine of the character described, the combination of means tofeed staple stock wire continuously, a reciprocating staple formeradapted to sever a piece of-the moving wire and form it into a staple,and a reciprocating staple driver.

26. In a machine of the character described, the combination ofreciprocating staple forming and driving elements, means to feed staplestock wire continuously toward the path of reciprocation of saidelements, means to deflect the direction of feed of the staple stockwire to feed a portion thereof to one side of the path of reciprocationof said elements, and means to move said portion into the path ofreciprocation of said elements to be operated on thereby.

27. In a machine of the character described, the'combination of stapleforming and driving elements andmeans ,to feed staple stock wire theretocontinuously in the direction of the axis of the wire and intermittentlyin a direction laterally of the axis of the wire.

ALFRED L. ROSENMUND. GEORGE P. IGLEHEART.

